[BUG]: I cannot click "Enrich metadata" on more than one model until the first enrichment has finished

[liunelson]

Describe the bug
I cannot click "Enrich metadata" on more than one model until the first enrichment has finished. This is annoying when I have many models that need to be enriched. Currently, I have to wait for each to be done before clicking on "Enrich metadata" on the subsequent model.

To Reproduce
Steps to reproduce the behavior:

1. Download 3 papers (... (Model <X>).pdf) and 3 models (Model <X> (local, edited))
2. Click on 'Enrich metadata" on all of the model pages
3. Notice that the button is greyed out after the first model

Expected behavior
One should be make multiple, simultaneous model (and dataset) enrichment requests.